My MONO System

[tcdriver]

My Monophonic system - December 2013:



Another look with preamplifier power supply is directly below the turntable:






Turntable - Garrard RC 88/4
Phonograph cartridge - Shure M7D
Preamp - Heathkit WA-P2 (with DIY power supply)
Amplifier - Magnavox AMP 169 BB
Speaker - unbranded. The internals look exactly like the Eber EE-80. Probably designed as a house brand speaker.

This system was inspired by the Heathkit WA-P2. I have several and I decided to make a prototype power supply to power it. The power supply worked out well and the final proof was to set up and listen to this mono system.

 

[sprins]

Are all components mono? Or are you summing the audio along the way?

 

[tcdriver]

Are all components mono? Or are you summing the audio along the way?

Only the turntable / phonograph cartridge are two-channel stereo, summed using a "Y" connector. All the other components are monophonic.

 

[sprins]

Here's a nice mod to complete the mono-mission

http://www.rane.com/note109.html

 

[tcdriver]

Here's a nice mod to complete the mono-mission

http://www.rane.com/note109.html

Stereo phonograph cartridges are commonly summed by directly shorting the two outputs together without intervening resistors. e.g. The Shure mono cartridge is a stereo unit with linked outputs. If I was summing the signals together at preamplifier, CD player or tuner outputs, I would include a network similar to the one you have linked. :thmbsp:

 

[BOUXY]

Very nice Systems indeed but for me I'd need 2 of the same,1 for one Ear and another for the other Ear but wait,I do it's called STEREO
Seriously I use to have a Mono Quad MK II Amplifier/Tuner and Controller(Pre-Amp) driving a Stromberg Carlson Huge Cabinet from 1962.I was given it by the original Owner's Wife,Mother of a friend,it was awesome but like a FOOL I got rid of it all,oops too late

 

[jgannon]

Very nice! How does that RC 88 sound? Really nice looking setup!!

 

[tcdriver]

... I use to have a Mono Quad MK II Amplifier/Tuner and Controller(Pre-Amp) driving a Stromberg Carlson Huge Cabinet from 1962.

Now that sounds like a really nice system. :yes: I still have my QUAD mono equipment awaiting a refreshment.

 

[tcdriver]

Very nice! How does that RC 88 sound? Really nice looking setup!!

The RC 88/4 sounds like it needs a new or refurbished idler wheel, otherwise pretty nice.

 

[mfrench]

I've been spinning mono all morning.
Yours looks like a nice system. Congrats.

 

[whitey]

Cool! I've got one of those tables sitting on a shelf....One day it will get some love.

 

[the_nines]

My Monophonic system - December 2013:



Another look:


The preamplifier power supply is directly below the turntable.




Turntable - Garrard RC 88/4
Phonograph cartridge - Shure M7D
Preamp - Heathkit WA-P2 (with DIY power supply)
Amplifier - Magnavox AMP 169 BB
Speaker - unbranded. The internals look exactly like the Eber EE-80. Probably designed as a house brand speaker.

This system was inspired by the Heathkit WA-P2. I have several and I decided to make a prototype power supply to power it. The power supply worked out well and the final proof was to set up and listen to this mono system.

I love it! :thmbsp:

I love the simplicity of it all.

Great equipment. Must sound just great!

:thmbsp:

 

[JohnMac]

Very cool system. Thanks for sharing it with us!

 

[tcdriver]

I've been spinning mono all morning.
Yours looks like a nice system. Congrats.

I love it! :thmbsp:

I love the simplicity of it all.

Great equipment. Must sound just great!

:thmbsp:

Very cool system. Thanks for sharing it with us!

Thank you mfrench, the_nines and JohnMac for the nice comments.

 

[Rome]

Luv the setup & print too!

Rome

 

[drtool]

lovely set up Tc. 95% of the time I enjoy mono over stereo. One speaker in the corner. All of my pre amps have a mono switch. I have been thinking of making my AR TT just for mono and a HH Scott mono pre/power amp with DIY speaker.

 

[tcdriver]

... I have been thinking of making my AR TT just for mono and a HH Scott mono pre/power amp with DIY speaker.

That sounds like a good plan. Be sure to post some pictures when completed.

 

[fdrennen]

Thanks for the thread I love it!

 

[Omegaman]

Very nice vintage system. I have a Shure M7D in my RC-121 and they are great for vintage changers

Question:
The Heathkit pre-amp has a magnetic phono pre-amp in order to use the Shure M7D cart?

 

[tcdriver]

Very nice vintage system. I have a Shure M7D in my RC-121 and they are great for vintage changers

Question:
The Heathkit pre-amp has a magnetic phono pre-amp in order to use the Shure M7D cart?

Yes, the Heathkit WA-P2 does have the amplification and equalization suitable for use with a standard magnetic phonograph cartridge. The equalization is adjustable, from the front panel, for recording curves pre-RIAA as well as RIAA, making it suitable for all monophonic recordings including 78's.